Has weak antibacterial activity against Gram-positive bacteria M.luteus A270 (MIC=47.2-94.5 uM), S.aureus ATCC 29213 (MIC=94.5-188.9 uM) and S.epidermidis ATCC 12228 (MIC=94.5-188.9 uM) as well as against Gram-negative bacterium S.marcescens ATCC 4112 (MIC=23.5-47.2 uM). Also active against yeast C.albicans MDM8 (MIC=94.5-188.9 uM). Has no activity against Gram-negative bacteria E.coli ATCC 25922, E.coli SBS363 and P.aeruginosa ATCC 27853 or against clinical isolates of C.albicans, C.krusei, C.glabrata, C.parapsilosis, C.tropicalis, C.guilliermondii or Trichosporon sp. Expressed in egg (at protein level). Possibly derived from Nedd4 E3 ubiquitin ligase.