0610007I11Rik,DjB1,DnaJ (Hsp40) homolog, subfamily B, member 1,dnaJ homolog subfamily B member 1,Hdj1,heat shock 40 kDa protein 1,Hsp,Hsp40,HSPF1.
Interacts with HSP70 and can stimulate its ATPase activity. Stimulates the association between HSC70 and HIP. Negatively regulates heat shock-induced HSF1 transcriptional activity during the attenuation and recovery phase period of the heat shock response. Stimulates ATP hydrolysis and the folding of unfolded proteins mediated by HSPA1A/B (in vitro).