bZIP family transcription factor. similar to unknown protein [Arabidopsis thaliana] (TAIR:AT2G02730.1); similar to unknown protein [Arabidopsis thaliana] (TAIR:AT2G02730.2); similar to unnamed protein product [Vitis vinifera] (GB:CAO41042.1); contains InterPro domain Protein of unknown function DUF1664 (InterPro:IPR012458)