Function
Modulator of growth inhibition. Isoform 2 and isoform 3, but not isoform 1, confer a strong methyl-jasmonate insensitivity. Not involved in the growth response to salicylic acid or indole-3-acetic acid. Isoform 3 acts as an endogenous repressor of JA signal output in JA-stimulated cells (PubMed:19151223).