Predicted to enable GTPase activator activity. Predicted to be involved in negative regulation of signal transduction and regulation of catalytic activity. Predicted to act upstream of or within G protein-coupled receptor signaling pathway and regulation of G protein-coupled receptor signaling pathway. Predicted to be located in cytoplasm. Orthologous to human RGS18 (regulator of G protein signaling 18). [provided by Alliance of Genome Resources, Apr 2022]