AK facing minraise on flop

[RyuSujin]

Two or so orbits of the table later, this hand comes up. Villain seems to be a bit of a maniac, on later streets going crazy with over-bets, causing lots of folds. My initial read was that he may have gotten lucky with something like Tx. What do you think?

Poker Stars - No Limit Hold'em Cash Game - $0.01/$0.02 Blinds - 6 Players - (LegoPoker HH Converter)

SB: $3.24
Hero (BB): $4.97
UTG: $6.13
MP: $16.96
CO: $2.26
BTN: $2.97

Preflop: Hero is dealt K[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/club.gif[/img] (6 Players)
UTG folds, MP calls $0.02, CO calls $0.02, BTN calls $0.02, SB folds, <font color="red">Hero raises to $0.12</font>, MP calls $0.10, CO calls $0.10, BTN folds

Flop: ($0.39) T[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/heart.gif[/img] (3 Players)
<font color="red">Hero bets $0.22</font>, <font color="red">MP raises to $0.44</font>, 2 folds

Pot Size: $1.05

Haven't seen him pull the min-raise before. Thoughts? Thanks!