Functions downstream of migratory protein mig-13 and is involved in Q neuroblast migration during larval development (PubMed:27780040). Recruited by mig-13 to the leading edge of Q neuroblasts and their descendents to signal downstream, likely to the wve-1 pathway, and direct migration along the anteroposterior body axis (PubMed:27780040). Promotes germline cell apoptosis in response to oxidative, osmotic and heat shock stresses (PubMed:16729024). ATP + L-tyrosyl-[protein] = ADP + H(+) + O-phospho-L-tyrosyl-[protein] Interacts (via SH2 and SH3 domains) with mig-13; the interaction is direct. May interact with soem-1. Enriched at the leading edge compared to cytoplasm. Targeted to the leading edge of Q neuroblasts by mig-13. Experimental confirmation may be lacking for some isoforms. Belongs to the protein kinase superfamily. Tyr protein kinase family. ABL subfamily.