I have no read on opposition as this is only my 2nd orbit. Initially I thought that this is standard and an easy decision but the longer I think about it the more I would like to know what you guys think? Without reads and in position I often call with AK now as 4-betting on Ongame is pretty rare.

Poker Room skin
No Limit Holdem Ring game
Blinds: $1/$2
5 players
Converter

Stack sizes:
UTG: $389.50
CO: $200.00
Hero: $197.00
SB: $146.15
BB: $212.55

Pre-flop: (5 players) Hero is Button with A K
UTG raises to $7, CO folds, Hero raises to $24, 2 folds, UTG raises to $52, Hero calls.

Flop: 5 J 2 ($107, 2 players)
UTG is all-in $337.5, Hero ??