Predicted to enable lipid binding activity. Predicted to be a structural constituent of skin epidermis. Predicted to be involved in keratinization. Predicted to be located in cornified envelope and cytoplasm. Predicted to be active in extracellular region and secretory granule. Orthologous to several human genes including SPRR2A (small proline rich protein 2A); SPRR2B (small proline rich protein 2B); and SPRR2D (small proline rich protein 2D).