Divalent metal cation transporter. Mediates transport of divalent metal cations in an order of Mg(2+) > Co(2+) > Mn(2+) > Sr(2+) > Ba(2+) > Cu(2+) > Fe(2+). Isoform 1 and isoform 2 may interact with each other. Widely expressed, with highest levels in kidney, lung, spleen and testis. In the kidney, predominantly expressed in the distal convoluted tubule and, at lower levels, in the connecting tubule (at protein level). By low Mg(2+) concentration. The N-terminus is cleaved within the endoplasmic reticulum. The signal peptidase complex seems to be involved in the processing, but the exact cleavage site has not been identified (PubMed:22399287). Shares weak sequence similarity with the cyclin family, hence its name. However, it has no cyclin-like function in vivo. Belongs to the ACDP family. Truncated N-terminus. Contaminating sequence. Potential poly-A sequence. Truncated N-terminus.