Predicted to enable GTPase activator activity and protein C-terminus binding activity. Acts upstream of or within regulation of cell cycle. Predicted to be located in transport vesicle. Predicted to be part of protein-containing complex. Predicted to be active in cytoplasm. Is expressed in several structures, including genitourinary system; heart; immune system; liver; and lung. Used to study chronic myeloid leukemia. Orthologous to human SIPA1 (signal-induced proliferation-associated 1). [provided by Alliance of Genome Resources, Apr 2022]