Predicted to enable collagen binding activity and intermediate filament binding activity. Involved in cell-matrix adhesion. Located in hemidesmosome and intermediate filament. Expressed in several structures, including amphid neurons; enteric muscle; excretory system; phasmid sensillum; and rectum. Used to study Marfan syndrome. Human ortholog(s) of this gene implicated in multiple epiphyseal dysplasia 5 and osteoarthritis. Is an ortholog of human MATN3 (matrilin 3).