Probable transcriptional regulator that acts as a repressor of the gibberellin (GA) signaling pathway. No effect of the BOI proteins on its stability. Probably acts by participating in large multiprotein complexes that repress transcription of GA-inducible genes. Its activity may be regulated by phytohormones such as auxin and ethylene (By similarity). Interacts directly with the GID2/SLY1 component of the SCF(GID2) complex, suggesting that it may be ubiquitinated. Interacts (via N-terminus) with GID1A, GID1B and GID1B (via N-terminus). Interacts with the BOI proteins BOI, BRG1, BRG2 and BRG3. Expressed at very low level. Mainly expressed in germinating seeds and flowers and siliques. Not expressed in other tissues. Phosphorylated. May be ubiquitinated. Rga, gai, rgl1, rgl2 and rgl3 pentuple mutant displays constitutive GA responses even in the absence of GA treatment. Belongs to the GRAS family. DELLA subfamily.