Predicted to enable calcium ion binding activity. Predicted to be an extracellular matrix structural constituent. Predicted to be involved in several processes, including collagen-activated tyrosine kinase receptor signaling pathway; otolith mineralization; and protein homooligomerization. Predicted to be located in extracellular region. Predicted to be part of collagen type IV trimer. Predicted to be active in extracellular matrix and extracellular space. Orthologous to human OTOL1 (otolin 1). [provided by Alliance of Genome Resources, Apr 2022]