Predicted to enable non-membrane spanning protein tyrosine kinase activity and signaling receptor binding activity. Predicted to be involved in several processes, including innate immune response; negative regulation of transcription by RNA polymerase II; and transmembrane receptor protein tyrosine kinase signaling pathway. Predicted to act upstream of or within phosphorylation. Predicted to be located in cytosol; nucleoplasm; and plasma membrane. Predicted to be extrinsic component of cytoplasmic side of plasma membrane. Is expressed in several structures, including alimentary system; brain; genitourinary system; limb; and sensory organ. Orthologous to human FRK (fyn related Src family tyrosine kinase). [provided by Alliance of Genome Resources, Apr 2022]