Probable transcriptional regulator that acts as a repressor of the gibberellin (GA) signaling pathway. Probably acts by participating in large multiprotein complexes that repress transcription of GA-inducible genes. Upon GA application, it is degraded by the proteasome, allowing the GA signaling pathway (By similarity). Its degradation is not essential for germination. Expressed in both vegetative and reproductive tissues. The DELLA motif is required for its GA-induced degradation. Phosphorylated. Ubiquitinated. Upon GA application it is ubiquitinated, leading to its subsequent degradation (By similarity). Belongs to the GRAS family. DELLA subfamily.