Transcriptional regulator that plays a role in retinal development and maintenance. Binds DNA. Can associate with the proximal promoter regions of PAX6 and SP4, and their known targets including ARR3, RHO, OPN1MW2 and OPN1SW. In the retina, expressed in the outer and inner nuclear layers, and the ganglion cell layer. The disease is caused by variants affecting the gene represented in this entry. Belongs to the krueppel C2H2-type zinc-finger protein family.