Looking at it a bit, it doesn't appear to be only that one ship that does it; there are a few others.
One or two are custom ships, but there's also that green squidgy one...you know the one I mean: it's green and goes all bulgey like it's a living starship or something...? Oh, let me look it up; I don't have the names memorized yet.
The Pinthi Contagion, that's the one.
It doesn't seem to benefit the ship in any way to go grazing the asteroid ring around the circumference of the battlefield, but there ya go...