BB behind with 28bb

Multi-way Preflop | 3-way: BTN | 35bb effective | Difficulty: Expert

Players in hand: UTG (short, 12bb), Hero (BTN, 35bb), BB (28bb)

Hero hand

A♥K♣

Board

(preflop)

Action so far:
UTG shoves 12bb on bubble
Hero BTN with A♥K♣, 35bb effective
BB behind with 28bb

Pot: 13.5bb   To call: 12bb

Villain range: UTG bubble shove range with 12bb: 66+,A8s+,KTs+,QJs,AJo+,KQo. AKo has 51% vs this.

Your move: