Relay by ecm, behind intake manifold

[Mrkentee]

Still searching for the starter relay. Found a relay to the right of the ecm behind the intake manifold. I thought this has got to be it. Pulled it, and turned the key, expecting nothing. And it started right up.
Does anyone know what that relay is for? It’s a big one on the end of a few wires, all by itself.
There were no check engine lights.
Thanks