The function of Ensembl gene identifier ENSG00000167470 (MIDN, midnolin) is as follows. Facilitates the ubiquitin-independent proteasomal degradation of stimulus-induced transcription factors such as FOSB, EGR1, NR4A1, and IRF4 to the proteasome for degradation (PubMed:37616343). Promotes also the degradation of other substrates such as CBX4 (By similarity). Plays a role in inhibiting the activity of glucokinase GCK and both glucose-induced and basal insulin secretion. {ECO:0000250|UniProtKB:D4AE48, ECO:0000250|UniProtKB:Q3TPJ7, ECO:0000269|PubMed:37616343}.