zinc ion binding. similar to zinc ion binding [Arabidopsis thaliana] (TAIR:AT1G80220.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO65624.1); contains InterPro domain Zinc finger, C2H2-like; (InterPro:IPR015880); contains InterPro domain Protein of unknown function DUF1644 (InterPro:IPR012866)