Predicted to enable actin binding activity. Acts upstream of or within cellular response to interleukin-7; chemotaxis; and defense response. Predicted to be located in plasma membrane. Is expressed in several structures, including alimentary system; genitourinary system; hair follicle; respiratory system; and thymus. Orthologous to human LSP1 (lymphocyte specific protein 1). [provided by Alliance of Genome Resources, Apr 2022]