Predicted to enable DNA-binding transcription activator activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Predicted to be involved in several processes, including determination of left/right symmetry; lung development; and positive regulation of transcription by RNA polymerase II. Predicted to act upstream of or within anterior/posterior pattern specification and heart looping. Predicted to be located in cytoplasm and nucleoplasm. Predicted to be active in nucleus. Human ortholog(s) of this gene implicated in X-linked VACTERL association; situs inversus; and visceral heterotaxy. Orthologous to human ZIC3 (Zic family member 3). [provided by Alliance of Genome Resources, Apr 2022]