Enables cytokine binding activity and leukemia inhibitory factor receptor activity. Involved in several processes, including animal organ regeneration; negative regulation of muscle cell apoptotic process; and neuron projection morphogenesis. Predicted to be integral component of membrane. Predicted to be part of receptor complex. Predicted to be active in external side of plasma membrane. Human ortholog(s) of this gene implicated in osteochondrodysplasia. Orthologous to human LIFR (LIF receptor subunit alpha). [provided by Alliance of Genome Resources, Apr 2022]