Predicted to enable GTPase activator activity. Predicted to be involved in regulation of small GTPase mediated signal transduction. Predicted to be located in intracellular membrane-bounded organelle and plasma membrane. Predicted to be active in cytoplasm. Is expressed in several structures, including gut; male reproductive gland or organ; and trigeminal nerve. Orthologous to human ARHGAP19 (Rho GTPase activating protein 19). [provided by Alliance of Genome Resources, Apr 2022]