Predicted to enable actin filament binding activity. Predicted to be involved in Arp2/3 complex-mediated actin nucleation. Predicted to be located in muscle cell projection membrane; nucleus; and site of double-strand break. Predicted to be part of Arp2/3 protein complex. 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]