Putative transcription activator involved in regulating light control of development. May act as a negative regulator specific to phyB signaling. The nuclear localization is independent of the light treatment. Expressed in hypocotyls, rosette and cauline leaves, inflorescences stems, flowers and siliques. Up-regulated in hypocotyls by far-red light treatment. Belongs to the FHY3/FAR1 family. Sequencing errors.