Predicted to enable protein-macromolecule adaptor activity. Acts upstream of or within cell population proliferation. Predicted to be located in cytoplasm and plasma membrane. Human ortholog(s) of this gene implicated in juvenile rheumatoid arthritis and multiple sclerosis. Orthologous to human SH2D2A (SH2 domain containing 2A). [provided by Alliance of Genome Resources, Apr 2022]