Do I call with AKo

[adrockuk]

Firstly this is my first posting of a hand but I've been absorbing advice on this forum for a while, thanks to all the regular posters.

6 seater $20+2

Button (hero) (1600)
SB (950)
BB (450)
UTG (3000)

Blinds 150/300

Reads UTG seemed a solid player although quite tight so far. My table image may be suspect having built my stack back up through bluff and bluster the last few rounds.

Dealt to Hero AKo

UTG ALL IN
Hero ??

If UTG had been playing normal or loose this would be an auto call for me but with his quite tight image and the blinds on smallish stacks i'm not too sure.

All advice appreciated.