Putative WAS protein family homolog 3 (WASH3P)

Acts as a nucleation-promoting factor in the surface of endosomes, where it recruits and activates the Arp2/3 complex to induce actin polymerization, playing a key role in the fission of tubules that function as transport intermediates during endosome sorting (PubMed:18159949, PubMed:20175130). Its assembly in the WASH core complex seems to inhibit its NPF activity and through WASHC2 is required for its membrane targeting.

Involved in transferrin receptor recycling. Regulates the trafficking of endosomal alpha5beta1 integrin into the plasma membrane and involved in invasive cell migration (By similarity).