Receptor tyrosine kinase which plays a role in promoting longevity and resistance to stresses including UV irradiation and high temperatures, probably downstream of daf-16. ATP + L-tyrosyl-[protein] = ADP + H(+) + O-phospho-L-tyrosyl-[protein] By UV irradiation, high temperatures, starvation and old age. Increased life span and resistance to UV irradiation and high temperatures. Belongs to the protein kinase superfamily. Tyr protein kinase family.