Ras-related protein which binds GDP/GTP and possesses intrinsic GTPase activity (PubMed:1910037). Involved in development of cell polarity during the cell division cycle, and essential for bud emergence (PubMed:2690082). GTP + H2O = GDP + H(+) + phosphate Alternates between an inactive form bound to GDP and an active form bound to GTP (PubMed:1910037). Activated by a guanine nucleotide-exchange factor (GEF) and inactivated by a GTPase-activating protein (GAP) (PubMed:1910037). Belongs to the small GTPase superfamily. Ras family.