Trans-Golgi-associated GTPase that regulates protein sorting. Controls the targeting of ARL1 and its effector to the trans-Golgi. Required for the lipidation of chylomicrons in the intestine and required for VLDL lipidation in the liver.
Subcellular locations: Golgi apparatus, Golgi apparatus, Trans-Golgi network
Located in the trans-Golgi in the GTP-bound active state.
Found in most tissues.