Predicted to enable non-membrane spanning protein tyrosine kinase activity. Involved in several processes, including T cell receptor signaling pathway; activation of phospholipase C activity; and gamma-delta T cell activation. Acts upstream of or within NK T cell differentiation. Located in cell-cell junction and nucleus. Human ortholog(s) of this gene implicated in lymphoproliferative syndrome 1. Orthologous to human ITK (IL2 inducible T cell kinase). [provided by Alliance of Genome Resources, Apr 2022]