Predicted to enable protein homodimerization activity and small GTPase binding activity. Involved in regulation of GTPase activity and tube morphogenesis. Predicted to be located in Golgi apparatus and perinuclear region of cytoplasm. Predicted to be part of protein-containing complex. Predicted to be active in cell-cell junction. Is expressed in several structures, including body cavity or lining; cardiovascular system; extraembryonic component; genitourinary system; and vertebral axis musculature. Orthologous to human RASIP1 (Ras interacting protein 1). [provided by Alliance of Genome Resources, Apr 2022]