Yes, he plays 3rd/4th line. He's not exactly a goon, though he can be. Maggio is pretty much the goon. He's a D playing forward but it doesn't matter. Anyway, Heard can kill penalties and take D zone faceoffs, so he's used for that. He's definitely not used in any offensive capacity. Lake Erie has enough trouble generating offense that they don't experiment much with roles though the lines get shuffled around a lot. Meurs has also been relegated to the 4th line agitator role too. I was thinking about it the other day that Heard has cut down on the stupid penalties. I really think he could replace Bordy in a few years and actually do other things such as PK but he probably wouldn't be considered a heavyweight like Bordy is though.
The lines right now are something like
DVDG/Olver/Agozzino
Schumacher/Smith/Desbiens
Sgarbossa/Bourke/Wyman
Maggio/Cheek/Heard/Meurs