Predicted to enable fibroblast growth factor receptor binding activity; growth factor activity; and receptor-receptor interaction. Involved in regulation of neuron differentiation. Acts upstream of or within inner ear receptor cell differentiation and regulation of cardiac muscle cell proliferation. Predicted to be located in extracellular region. Predicted to be active in cytoplasm and extracellular space. Is expressed in several structures, including cranium; integumental system; limb; sensory organ; and tooth. Human ortholog(s) of this gene implicated in renal agenesis. Orthologous to human FGF20 (fibroblast growth factor 20). [provided by Alliance of Genome Resources, Apr 2022]