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). {ECO:0000250|UniProtKB:Q6IQX8, ECO:0000269|PubMed:14621294, ECO:0000269|PubMed:19549071}. This is the function of Ensembl gene identifier ENSG00000165804 (ZNF219, zinc finger protein 219).