[5] Progressive encephalopathy with brain edema and/or leukoencephalopathy-1 (PEBEL-1), a rare, lethal, neurometabolic disorder, is caused by mutation in NAXE gene (APOA1BP being its former name).
[5] Expression is ubiquitous across all human tissues, with highest observed in kidney, heart, liver, testis, thyroid gland, adrenal gland.
[5] In addition, APOA1BP appears to play a role in sperm capacitation.
[9] It has been demonstrated that APOA1BP is involved in angiogenesis regulation, by accelerating cholesterol efflux from endothelial cells to HDL.
[10][11] It is known that zebrafish APOA1BP ortholog Aibp is involved in angiogenesis regulation.