If you are looking to a similar apt/dpkg function, I don't know one, but you can use this:
dpkg -S $(cpan -D Net::Cmd | grep pm | awk -F '/' '{print $NF}')
perl-modules: /usr/share/perl/5.14.2/IPC/Cmd.pm
perl-modules: /usr/share/perl/5.14.2/Net/Cmd.pm
You can use cpan -D module to find basic information about a module:
cpan -D Net::Cmd
Going to read '/home/braiam/.cpan/Metadata'
Database was generated on Fri, 16 Aug 2013 21:53:02 GMT
Net::Cmd
-------------------------------------------------------------------------
For command based protocols (FTP, SMTP etc)
S/SH/SHAY/libnet-1.23.tar.gz
/usr/share/perl/5.14/Net/Cmd.pm
Installed: 2.29
CPAN: 2.30 Not up to date
Graham Barr (GBARR)
gbarr@pobox.com
Then parse the module path, in my case I was lazy, you can use whatever you like to do this:
cpan -D Net::Cmd | grep pm | awk -F '/' '{print $NF}'
Cmd.pm
Then use command substitution:
dpkg -S $(cpan -D Net::Cmd | grep pm | awk -F '/' '{print $NF}')
perl-modules: /usr/share/perl/5.14.2/IPC/Cmd.pm
perl-modules: /usr/share/perl/5.14.2/Net/Cmd.pm
Hope is useful to you. BTW, this requires cpan installed (which is in most of the defaults installations).