Sar1a - secretion associated Ras related GTPase 1A

Predicted to enable GTPase activity. Acts upstream of or within negative regulation of cargo loading into COPII-coated vesicle and vesicle-mediated transport. Located in Golgi apparatus and sarcoplasmic reticulum. Is expressed in several structures, including genitourinary system; liver; nervous system; retina nuclear layer; and skeletal musculature. Orthologous to human SAR1A (secretion associated Ras related GTPase 1A). [provided by Alliance of Genome Resources, Apr 2022]