Predicted to enable SH2 domain binding activity. Predicted to be involved in B cell activation; B cell receptor signaling pathway; and calcium-mediated signaling. Predicted to be located in membrane raft. Predicted to be active in plasma membrane. Human ortholog(s) of this gene implicated in Williams-Beuren syndrome. Orthologous to human LAT2 (linker for activation of T cells family member 2). [provided by Alliance of Genome Resources, Apr 2022]