AK - should I fold?

[Gorvacofin]

Poker Stars - No Limit Hold'em Cash Game - $0.02/$0.05 Blinds - 6 Players - (LegoPoker HH Converter (http://www.legopoker.com/hh))

SB: $6.08
BB: $5.41
UTG: $8.96
MP: $3.17
CO: $2.75
Hero (BTN): $10.74

Preflop: Hero is dealt K/images/graemlins/club.gif A/images/graemlins/diamond.gif (6 Players)
UTG calls $0.05, MP folds, CO calls $0.05, <font color="red">Hero raises to $0.20</font>, SB calls $0.18, BB calls $0.15, UTG calls $0.15, CO calls $0.15

Flop: ($1) 3/images/graemlins/heart.gif K/images/graemlins/diamond.gif 5/images/graemlins/heart.gif (5 Players)
<font color="red">SB bets $0.20</font>, <font color="red">BB raises to $1.15</font>, 2 folds, Hero calls $1.15, SB calls $0.95

Turn: ($4.45) 6/images/graemlins/club.gif (3 Players)
SB checks, <font color="red">BB bets all-in for $4.06</font>, Hero folds

Pot Size: $8.51

SB was an LAG; no reads on the other guy. I know my preflop raise was too small. Was this a bad fold?

[ocdscale]

Preflop, raise to ~0.30 at least.
Flop is usually a raise for me, although I call it sometimes and stack off on the turn.
As played, turn is never a fold.

[beavens]

don't see how this is a good fold.

with that villain at this level you'll see TP with any kicker as well as draws.

you're getting over 2:1 on your money with most likely the best hand.