Transcriptional regulator (PubMed:14621294, PubMed:19549071). Recognizes and binds 2 copies of the core DNA sequence motif 5'-GGGGG-3' (PubMed:14621294). Binds to the HMGN1 promoter and may repress HMGN1 expression (PubMed:14621294). Regulates SNCA expression in primary cortical neurons (PubMed:19549071). Binds to the COL2A1 promoter and activates COL2A1 expression, as part of a complex with SOX9 (By similarity). Plays a role in chondrocyte differentiation (By similarity). Interacts with SOX9 (via C-terminus). Ubiquitous. C2H2-type zinc-finger domains 5 and 6 are important for the interaction with SOX9. Belongs to the krueppel C2H2-type zinc-finger protein family.