Predicted to enable calcium ion binding activity. Predicted to be an extracellular matrix structural constituent. Acts upstream of or within response to axon injury. Located in collagen-containing extracellular matrix. Is expressed in several structures, including bone; brain; connective tissue; respiratory system; and sensory organ. Orthologous to human MATN4 (matrilin 4). [provided by Alliance of Genome Resources, Apr 2022]