May be involved in ATE1-mediated N-terminal arginylation. Interacts with ATE1; it is not a substrate of LIAT1. Interacts with JMJD6 and MRPS14. Highly expressed in spleen, thymus, liver and brown adipose tissue. Moderately expressed in liver, testis and lung. LIAT1 proteins of some primates, from macaques to humans, contain tandem repeats of a 10-residue sequence, whereas LIAT1 proteins of other mammals contain a single copy of this motif. Quantities of these repeats are, in general, different in LIAT1 of different primates. For example, there are 1, 4, 13, 13, 17, and 17 repeats in the gibbon, gorilla, orangutan, bonobo, neanderthal, and human LIAT1, respectively.