Acts upstream of or within intermediate filament organization; keratinization; and morphogenesis of an epithelium. Is expressed in oral epithelium; skin; and tongue. Human ortholog(s) of this gene implicated in pachyonychia congenita. Orthologous to human KRT6A (keratin 6A) and KRT6B (keratin 6B). [provided by Alliance of Genome Resources, Apr 2022]