GTPase activator for the nuclear Ras-related regulatory proteins Rap1 and Rap2 in vitro, converting it to the putatively inactive GDP-bound state. Note: This description may include information from UniProtKB.
Cellular Component: cytosol; membrane; nucleus; perinuclear region of cytoplasm; protein complex; transport vesicle
Molecular Function: GTPase activator activity; protein binding; protein C-terminus binding
Biological Process: cell proliferation; cellular response to water deprivation; cytoskeleton organization; negative regulation of cell adhesion; negative regulation of cell cycle; negative regulation of cell growth; positive regulation of GTPase activity; regulation of small GTPase mediated signal transduction; signal transduction