The function of LHX4 (LIM homeobox 4, Ensembl gene identifier ENSG00000121454) is as follows. May play a critical role in the development of respiratory control mechanisms and in the normal growth and maturation of the lung. Binds preferentially to methylated DNA (PubMed:28473536). {ECO:0000250, ECO:0000269|PubMed:28473536}.