Yes he can (if Kisame is the one wielding it).
You must be registered for see images
As you can see in the image above, Samehada absorbed the katon. That is a fact. The only parts that were not absorbed were the flames which didn't touch Samehada.
Samehada very clearly absorbed the fire. The fact that it 'thunked' Bee on the head afterwards shows mild irritation, not inability. Does Samehada like absorbing katon? No. Will it absorb katon? Yes. When we're talking about absorbing fire, the same principles apply to Amaterasu as they do katon. Even if Samehada does not willingly absorb Amaterasu, Kisame can force it to after merging with it. Yes, you read that right.
You must be registered for see images
Notice how Samehada only betrayed Kisame for Bee after it seperated from Kisame. If it could have, Samehada would've seperated from Kisame while he was still battling with Bee in the water dome. It was only after Samehada and Kisame disconnected that Samehada earned a free will of its own. Also, Kisame merged and hid within Samehada in order to infiltrate the Hidden Cloud and gain intel on the location of the Hachibi and Kyubi:
You must be registered for see images
Bee specifically states that Kisame forced Samehada to merge with him. On the next page, Kisame forces Samehada to absorb Bee's chakra:
You must be registered for see images
That being said, Kisame can force Samehada to absorb amaterasu if necessary.
Moving on: here's what the databook has to say about Amaterasu:
You must be registered for see images
Translation:
"The ones reflected in these eyes turn to ash!! A black world-destroying
conflagration that scorches all on heaven and earth!!"
The Uchiha clan, originally significant as "those with the fans which manipulate
fire", traditionally specialize in Katon jutsu, but there is a legendary jutsu
unknown outside the clan. This is "Amaterasu". The appearance of these flames
are jet-black. The high temperature is like the sun, and one time touching it is
the last. It is said that this is named after the Goddess of the Sun as it
continues to burn for seven days and seven nights. However, the Mangekyou
Sharingan is necessary to activate this jutsu, and for this reason there are not
many who have learned this jutsu. Therefore, the details of this jutsu are yet
unrevealed...
Picture text:
Top: The black flames that only the owner of the Mangekyou Sharingan can control
are even able to instantly break through the side of a rock toad who breathes
fire!!
Bottom: Jiraiya, whi has mastered many jutsu, did not know of the existence of
Amaterasu. What he does understand is the power of the suspicious conflagration.
I believe the databook is the only source at all that states Amaterasu is hotter than normal fire. As I'm sure you know, the databook exaggerates the power of almost every jutsu. The flames will not actually burn for seven days and seven nights. One time touching it is not necessarily always the last. The flames are not as hot as the sun. That being said, there's no reason to believe that flames from Amaterasu are any hotter than normal flames.
Kisame doesn't need to see Amaterasu to absorb it, Samehada does it for him. Absorbing chakra is almost instant so the moment it appears on his body it gets absorbed. Even if the flames do burn him slightly in the millisecond it takes to absorb them, Samehada will heal him from the minor burns just like it healed him from Bee's V2 Lariat, which was a much more serious injury:
You must be registered for see images
Something else I'd like to point out: according to science, a bolt of lightning is five times hotter than the surface of the sun. Samehada dealt with Bee's Raiton-enhanced swords with no trouble at all:
You must be registered for see images
Even if the databook was not exaggerating at all, and Amaterasu really is "as hot as the sun", it makes no difference. Samehada absorbed chakra that was five times hotter than Amaterasu, your argument that "amaterasu is too hot for Samehada to absorb" is invalid.
Source of the scientific fact:
You must be registered for see links