Enables telomeric DNA binding activity. Acts upstream of or within negative regulation of telomere maintenance. Located in chromosome, telomeric region. Is expressed in several structures, including brain ventricular layer; olfactory epithelium; submandibular gland primordium; thymus primordium; and vibrissa. Used to study dyskeratosis congenita. Human ortholog(s) of this gene implicated in Revesz syndrome and autosomal dominant dyskeratosis congenita 3. Orthologous to human TINF2 (TERF1 interacting nuclear factor 2). [provided by Alliance of Genome Resources, Apr 2022]