NL10 - AKs unexpected river decision

[Trashed]

Poker Stars, $0.05/$0.10 NL Hold'em Cash Game, 5 Players
LeggoPoker.com - Hand History Converter

BB: $10.15
UTG: $15.65
CO: $10
Hero (BTN): $12.40
SB: $6.45

Pre-Flop: K[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/club.gif[/img] dealt to Hero (BTN)
UTG calls $0.10, CO folds, <font color="red">Hero raises to $0.40</font>, 2 folds, UTG calls $0.30

Flop: ($0.95) 5[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/club.gif[/img] 2[img]/images/graemlins/club.gif[/img] (2 Players)
UTG checks, <font color="red">Hero bets $0.30</font>, UTG calls $0.30

Turn: ($1.55) K[img]/images/graemlins/diamond.gif[/img] (2 Players)
UTG checks, <font color="red">Hero bets $0.60</font>, UTG calls $0.60

River: ($2.75) K[img]/images/graemlins/heart.gif[/img] (2 Players)
UTG checks, <font color="red">Hero bets $1</font>, <font color="red">UTG raises to $11</font>, <font color="red">Hero ???</font>

I'd been playing with villain for a while, he seems pretty tight/passive not getting involved in a lot of hands. Stats read 14/3/1.1 over 240 hands

My first instinct was snap call, but I was playing a lot of tables and now I'm not so sure. Should I ever be laying this down? Did I play this hand horribly? Sorry if it's obvious