Sar1b - secretion associated, Ras related GTPase 1B

Predicted to enable GTPase activity. Predicted to be involved in several processes, including endoplasmic reticulum to Golgi vesicle-mediated transport; intracellular protein transport; and regulation of intracellular transport. Predicted to be located in Golgi cisterna membrane and endoplasmic reticulum membrane. Predicted to be part of COPII vesicle coat. Predicted to be active in endoplasmic reticulum exit site. Human ortholog(s) of this gene implicated in chylomicron retention disease. Orthologous to human SAR1B (secretion associated Ras related GTPase 1B). [provided by Alliance of Genome Resources, Apr 2022]