Predicted to enable several functions, including ATP binding activity; Hsp70 protein binding activity; and chaperone binding activity. Predicted to be involved in protein adenylylation; regulation of IRE1-mediated unfolded protein response; and response to endoplasmic reticulum stress. Predicted to act upstream of or within response to unfolded protein. Predicted to be integral component of endoplasmic reticulum membrane. Is expressed in central nervous system; genitourinary system; gut gland; and stomach. Orthologous to human FICD (FIC domain protein adenylyltransferase). [provided by Alliance of Genome Resources, Apr 2022]