Yep, that's the air injection pump.
It SHOULD run for about 30-45 seconds after first starting the engine when it's cold.
If it is running all the time, then most likely the relay contacts for the pump in the RCM are welded.

( this is fixable, usually )

Meanwhile, just pull the plug connector off the pump, you might get a CEL but nothing will be harmed.
( it's sole purpose in life is to pre-heat the O2 sensors on a cold start )

( I too am in Alabama, just heard that Gus is coming back to coach Auburn next year. WAR EAGLE ! )