/usr/share/perl5/ is in libuser-identity-perl 0.94-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/Mail/
/usr/share/perl5/Mail/Identity.pm
/usr/share/perl5/Mail/Identity.pod
/usr/share/perl5/User/
/usr/share/perl5/User/Identity.pm
/usr/share/perl5/User/Identity/
/usr/share/perl5/User/Identity/Archive/
/usr/share/perl5/User/Identity/Archive/Plain.pod
/usr/share/perl5/User/Identity/Archive/Plain.pm
/usr/share/perl5/User/Identity/System.pm
/usr/share/perl5/User/Identity/Location.pod
/usr/share/perl5/User/Identity/Collection.pod
/usr/share/perl5/User/Identity/Item.pm
/usr/share/perl5/User/Identity/Item.pod
/usr/share/perl5/User/Identity/Archive.pod
/usr/share/perl5/User/Identity/Archive.pm
/usr/share/perl5/User/Identity/Collection/
/usr/share/perl5/User/Identity/Collection/Systems.pm
/usr/share/perl5/User/Identity/Collection/Locations.pod
/usr/share/perl5/User/Identity/Collection/Systems.pod
/usr/share/perl5/User/Identity/Collection/Users.pm
/usr/share/perl5/User/Identity/Collection/Emails.pm
/usr/share/perl5/User/Identity/Collection/Emails.pod
/usr/share/perl5/User/Identity/Collection/Locations.pm
/usr/share/perl5/User/Identity/Collection/Users.pod
/usr/share/perl5/User/Identity/Location.pm
/usr/share/perl5/User/Identity/Collection.pm
/usr/share/perl5/User/Identity/System.pod
/usr/share/perl5/User/Identity.pod