Thought to have a role in developmental establishment of posterior morphology. Expressed between approximately 30-70 hours after egg lay at 15 degrees Celsius and between 15-35 hours after egg laying at 25 degrees Celsius relating to mid-L1 to mid-L3 stage of larval development. The protein kinase domain is predicted to be catalytically inactive. Worms exhibit a larval lethal phenotype, survivors show a rolling phenotype in adults, a locomotive defect.