GO:0005885; C:Arp2/3 protein complex; IEA:InterPro.
GO:0003779; F:actin binding; ISS:FlyBase.
GO:0030041; P:actin filament polymerization; IEA:InterPro.
GO:0034314; P:Arp2/3 complex-mediated actin nucleation; IEA:InterPro.
GO:0000902; P:cell morphogenesis; IMP:FlyBase.
GO:0030031; P:cell projection assembly; IMP:FlyBase.
GO:0030866; P:cortical actin cytoskeleton organization; IMP:FlyBase.
GO:0006911; P:phagocytosis, engulfment; IMP:FlyBase.
GO:0008360; P:regulation of cell shape; IMP:FlyBase.
GO:0042060; P:wound healing; IMP:FlyBase.