FRS4 (FAR1-RELATED SEQUENCE 4); zinc ion binding. similar to FAR1 (FAR-RED IMPAIRED RESPONSE 1) [Arabidopsis thaliana] (TAIR:AT4G15090.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO41786.1); similar to hypothetical protein [Vitis vinifera] (GB:CAN74344.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO41954.1); contains InterPro domain Zinc finger, PMZ-type; (InterPro:IPR006564); contains InterPro domain Zinc finger, SWIM-type; (InterPro:IPR007527); contains InterPro domain FAR1 (InterPro:IPR004330)