Predicted to be a structural constituent of cytoskeleton. Predicted to be involved in cytoskeleton organization and keratinization. Predicted to act upstream of or within regulation of cell shape. Predicted to be located in Golgi apparatus; cornified envelope; and perinuclear region of cytoplasm. Is expressed in several structures, including alimentary system; genitourinary system; nervous system; skin; and thymus. Orthologous to several human genes including SPRR3 (small proline rich protein 3).