50NL - straight no good here?

[alex-star]

How's my line here? Do give up on the river?

No Limit Holdem Ring game
Blinds: $0.25/$0.50
9 players
Converter

Stack sizes:
UTG: $60.95
UTG+1: $52.35
MP1: $23.20
MP2: $17.90
MP3: $19.55
CO: $21.25
Button: $21.75
Hero: $87.29
BB: $43.35

Pre-flop: (9 players) Hero is SB with A[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/diamond.gif[/img]
UTG calls, UTG+1 folds, MP1 calls, MP2 folds, MP3 calls, CO calls, Button calls, Hero calls, BB checks.

Flop: K[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/spade.gif[/img] T[img]/images/graemlins/diamond.gif[/img] ($3.5, 7 players)
Hero checks, <font color="#cc0000">BB bets $0.5</font>, UTG calls, MP1 calls, MP3 calls, CO calls, Button calls, Hero calls.

Turn: 5[img]/images/graemlins/heart.gif[/img] ($7, 7 players)
Hero checks, <font color="#cc0000">BB bets $0.5</font>, UTG calls, MP1 calls, MP3 folds, CO calls, Button calls, Hero calls.

River: Q[img]/images/graemlins/heart.gif[/img] ($10, 6 players)
Hero checks, <font color="#cc0000">BB bets $1.5</font>, <font color="#cc0000">UTG raises to $4</font>, 3 folds, Hero ??