Predicted to enable several functions, including GTPase activator activity; phosphatidylinositol-3,4,5-trisphosphate binding activity; and tubulin binding activity. Predicted to be involved in several processes, including cytoskeleton-dependent cytokinesis; mitotic spindle midzone assembly; and regulation of cell cycle process. Predicted to act upstream of or within neuroblast proliferation. Predicted to be located in several cellular components, including cleavage furrow; midbody; and spindle. Predicted to be extrinsic component of cytoplasmic side of plasma membrane. Predicted to be part of centralspindlin complex. Orthologous to human RACGAP1 (Rac GTPase activating protein 1). [provided by Alliance of Genome Resources, Apr 2022]