ATo isn't in my UTG opening range and i suggest u to don't play it UTG. Luckily you've gin'd the flop and you should be getting your money in here. Start off by raising BBs gay bet, then bet turn and check or bet riv depending on what type of riv card falls and how much of a station u think BB is.

You've made a mess of this hand really. You need to raise flop...or even the turn, you've flopped a premium hand and there is no reason to play it so passively.