I'm not 4betting AK from UTG in my current ranges vs unknown but the 2 callers make this a bit unusual . Anyone see it differently as with that much dead money he could be raising wider?

As played I'm snap folding flop.

PokerStars - $0.25 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4: http://www.pokertracker.com

BTN: $4.88 (VPIP: 46.67, PFR: 6.67, 3Bet Preflop: 0.00, Hands: 15)
SB: $43.05 (VPIP: 23.81, PFR: 19.05, 3Bet Preflop: 0.00, Hands: 85)
BB: $26.12 (VPIP: 27.27, PFR: 27.27, 3Bet Preflop: 0.00, Hands: 12)
Hero (UTG): $25.00
MP: $20.37 (VPIP: 60.00, PFR: 10.00, 3Bet Preflop: 0.00, Hands: 10)
CO: $35.20 (VPIP: 25.00, PFR: 18.75, 3Bet Preflop: 16.67, Hands: 16)

SB posts SB $0.10, BB posts BB $0.25

Pre Flop: (pot: $0.35) Hero has As Ks
Hero raises to $0.85, fold, CO calls $0.85, fold, SB calls $0.75, BB raises to $2.75, Hero calls $1.90, fold, SB calls $1.90

Flop : ($9.10, 3 players) 5h Qc 5d
SB checks, BB bets $4.25, ?