Predicted to enable Arp2/3 complex binding activity and protein kinase A regulatory subunit binding activity. Predicted to contribute to small GTPase binding activity. Involved in several processes, including cellular response to brain-derived neurotrophic factor stimulus; dendrite extension; and modification of postsynaptic actin cytoskeleton. Acts upstream of or within lamellipodium morphogenesis. Located in lamellipodium; mitochondrial outer membrane; and postsynapse. Is expressed in several structures, including central nervous system; liver; spleen; testis; and tooth. Orthologous to human WASF1 (WASP family member 1). [provided by Alliance of Genome Resources, Apr 2022]