Acts as a transcriptional repressor. Interacts with ERF7 to repress genes in abscisic acid and drought stress responses. The heterodimer represses transcription by tethering SNL3 to DNA. Interacts with ERF7 and the histone deacetylase HDA19. A number of isoforms are produced. According to EST sequences. The PHA domains are required for interactions with ERF7 and HDA19. Loss-of-function mutant (antisense inhibition) leads to abscisic acid hypersensitivity in germination.