/usr/share/perl5/ is in libmail-imapclient-perl 3.39-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/Mail/
/usr/share/perl5/Mail/IMAPClient/
/usr/share/perl5/Mail/IMAPClient/BodyStructure/
/usr/share/perl5/Mail/IMAPClient/BodyStructure/Parse.grammar
/usr/share/perl5/Mail/IMAPClient/BodyStructure/Parse.pm
/usr/share/perl5/Mail/IMAPClient/BodyStructure/Parse.pod
/usr/share/perl5/Mail/IMAPClient/BodyStructure.pm
/usr/share/perl5/Mail/IMAPClient/MessageSet.pm
/usr/share/perl5/Mail/IMAPClient/Thread.grammar
/usr/share/perl5/Mail/IMAPClient/Thread.pm
/usr/share/perl5/Mail/IMAPClient/Thread.pod
/usr/share/perl5/Mail/IMAPClient.pm
/usr/share/perl5/Mail/IMAPClient.pod