Predicted to enable phospholipid binding activity. Acts upstream of or within several processes, including T cell receptor signaling pathway; positive regulation of T cell activation; and positive regulation of cytokine production. Located in cell-cell junction; cytoplasm; and immunological synapse. Part of F-actin capping protein complex. Human ortholog(s) of this gene implicated in immunodeficiency 58. Orthologous to human CARMIL2 (capping protein regulator and myosin 1 linker 2). [provided by Alliance of Genome Resources, Apr 2022]