Predicted to enable SH2 domain binding activity; protein kinase binding activity; and protein phosphatase binding activity. Acts upstream of or within positive regulation of cell adhesion and protein localization to plasma membrane. Located in cell-cell junction; cytosol; and plasma membrane. Part of T cell receptor complex. Orthologous to human SKAP1 (src kinase associated phosphoprotein 1). [provided by Alliance of Genome Resources, Apr 2022]