The function of Ensembl gene identifier ENSG00000204482 (LST1, leukocyte specific transcript 1) is as follows. Possible role in modulating immune responses. Induces morphological changes including production of filopodia and microspikes when overexpressed in a variety of cell types and may be involved in dendritic cell maturation. Isoform 1 and isoform 2 have an inhibitory effect on lymphocyte proliferation. {ECO:0000269|PubMed:10706707, ECO:0000269|PubMed:11478849}.