Predicted to enable Arp2/3 complex binding activity and protein kinase A regulatory subunit binding activity. Involved in modification of postsynaptic actin cytoskeleton. Acts upstream of or within lamellipodium assembly; oligodendrocyte development; and positive regulation of myelination. Located in lamellipodium and postsynapse. Is active in glutamatergic synapse. Is expressed in adrenal gland; cap mesenchyme; nervous system; and neural retina. Orthologous to human WASF3 (WASP family member 3). [provided by Alliance of Genome Resources, Apr 2022]