ATP-dependent protein-folding chaperone for the eIF2 complex (PubMed:35031321, PubMed:37507029). Binds to the gamma subunit of the eIF2 complex which allows the subunit to assemble with the alpha and beta subunits (By similarity). {ECO:0000250|UniProtKB:Q05791, ECO:0000269|PubMed:35031321, ECO:0000269|PubMed:37507029}. This is the function of ENSG00000151465 (CDC123, cell division cycle 123).