Predicted to enable keratin filament binding activity. Predicted to be involved in several processes, including intermediate filament bundle assembly; negative regulation of keratinocyte migration; and regulation of epithelial cell proliferation. Predicted to be located in several cellular components, including apicolateral plasma membrane; hemidesmosome; and perinucleolar compartment. Predicted to colocalize with keratin filament. Orthologous to human EPPK1 (epiplakin 1). [provided by Alliance of Genome Resources, Apr 2022]