VMS Help INITIALIZE, /QUEUE, Qualifiers, /OWNER_UIC  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /OWNER_UIC=uic

    Enables you to change the user identification code (UIC) of the
    queue. Specify the UIC by using standard UIC format as described
    in the OpenVMS Guide to System Security. The default UIC is
    [1,4].