Predicted to enable scaffold protein binding activity. Located in keratin filament. Biomarker of urinary bladder cancer. Human ortholog(s) of this gene implicated in Dowling-Degos disease; epidermolysis bullosa simplex; and epidermolysis bullosa simplex with mottled pigmentation. Orthologous to human KRT5 (keratin 5). [provided by Alliance of Genome Resources, Apr 2022]