Predicted to enable GTPase activator activity and small GTPase binding activity. Predicted to be involved in activation of GTPase activity; intracellular protein transport; and retrograde transport, endosome to Golgi. Predicted to act upstream of or within cell division. Predicted to be located in cytosol. Is expressed in several structures, including genitourinary system; liver; lung; paravertebral ganglion; and spleen. Orthologous to human EVI5 (ecotropic viral integration site 5). [provided by Alliance of Genome Resources, Apr 2022]