Predicted to enable SH3 domain binding activity and identical protein binding activity. Predicted to be involved in several processes, including defense response to tumor cell; negative regulation of lamellipodium assembly; and positive regulation of cellular senescence. Predicted to be located in cytoplasm. Predicted to be part of SCAR complex. Predicted to be active in lamellipodium. Orthologous to human ABI3 (ABI family member 3). [provided by Alliance of Genome Resources, Apr 2022]