Predicted to enable small GTPase binding activity. Predicted to be involved in regulation of actin filament polymerization. Predicted to be located in membrane. Is expressed in cerebral cortex mantle layer; olfactory cortex mantle layer; and thalamus mantle layer. Orthologous to human CYRIA (CYFIP related Rac1 interactor A). [provided by Alliance of Genome Resources, Apr 2022]