Well, you can call it SB, UTG, what you like. It's much less relevant HU. But, 5 handed, you're still first to act if you're the HJ. I'd quite like to play you five handed if I'm sat one or two seats to your left if you're playing loose in the "HJ", blissfully unaware that UTG exists in anything other than FR.

Under The Gun - Poker Dictionary Definition

Preflop: Hero is Button with Q, A
UTG bets $0.35, MP calls $0.35, Hero calls $0.35, 1 fold, BB calls $0.25

I wonder why the hand converter calls it UTG?