Predicted to enable GTPase activator activity; protein homodimerization activity; and small GTPase binding activity. Acts upstream of or within positive regulation of cell-cell adhesion and positive regulation of phagocytosis. Predicted to be located in several cellular components, including dendrite; early endosome; and neuronal cell body. Predicted to be active in cytoplasm and membrane. Is expressed in several structures, including metanephros; nervous system; olfactory epithelium; pancreas; and skeleton. Orthologous to human RAP1GAP (RAP1 GTPase activating protein). [provided by Alliance of Genome Resources, Apr 2022]