Contains a GTPase activator for the Rho-type GTPases (RhoGAP) domain that would be able to negatively regulate the actin cytoskeleton as well as cell spreading. However, also contains N-terminally a BAR-domin which is able to play an autoinhibitory effect on this RhoGAP activity. Rho-GAP domain is able to regulate RhoGTPase activity, actin cytoskeleton and cell spreading. However N-terminally BAR domain plays an autoinhibitory role.