This is a fungal DUF of unknown function [1]. A member of this family (Swiss:Q7SB48) designated HAM-13 is thought to associate with MAPKs and to be required for proper cell communication but it is also possible to be involved in other processes such as cell signalling or trafficking [2].

1: Analysis of a genome-wide set of gene deletions in the fission yeast Schizosaccharomyces pombe. Kim DU, Hayles J, Kim D, Wood V, Park HO, Won M, Yoo HS, Duhig T, Nam M, Palmer G, Han S, Jeffery L, Baek ST, Lee H, Shim YS, Lee M, Kim L, Heo KS, Noh EJ, Lee AR, Jang YJ, Chung KS, Choi SJ, Park JY, Park Y, Kim HM, Park SK, Park HJ, Kang EJ, Kim HB, Kang HS, Park HM, Kim K, Song K, Song KB, Nurse P, Hoe KL; Nat Biotechnol. 2010;28:617-623. PMID:20473289

2: Fungal communication requires the MAK-2 pathway elements STE-20 and RAS-2, the NRC-1 adapter STE-50 and the MAP kinase scaffold HAM-5. Dettmann A, Heilig Y, Valerius O, Ludwig S, Seiler S; PLoS Genet. 2014;10:e1004762. PMID:25411845