Stimulates the GTPase activity of RAP2A. Promotes reorganization of the actin cytoskeleton and recruits DLG4 to F-actin. Contributes to the regulation of dendritic spine morphogenesis (By similarity).
Subcellular locations: Cytoplasm, Cytoskeleton, Postsynaptic density, Synapse, Synaptosome
Associated with the actin cytoskeleton. Detected at synapses and dendritic spines of cultured hippocampal neurons (By similarity).
Widely expressed.