May play a role in the process of differentiation and maturation of neuronal cells (By similarity). May regulate the activity of TRIM17. Is a negative regulator of PAX6 expression (PubMed:26394807). {ECO:0000250, ECO:0000269|PubMed:19358823, ECO:0000269|PubMed:26394807}. This is the function of TRIM44 (tripartite motif containing 44, ENSG00000166326).