Predicted to enable actin filament binding activity. Predicted to be involved in Arp2/3 complex-mediated actin nucleation. Located in muscle cell projection membrane. Is expressed in central nervous system and retina. Human ortholog(s) of this gene implicated in pancreatic cancer. Orthologous to human ARPC1A (actin related protein 2/3 complex subunit 1A). [provided by Alliance of Genome Resources, Apr 2022]