Network shares were previous mounted under a hidden folder in your home directory called gvfs. In recently distros of Ubuntu and those based on it, such as Mint, this directory has now moved to:
and the name of the folder under there for each share is really complicated, like:
which is really not very nice. So you should make a symlink to it like this:
ln -s "/run/user/[username]/gfvs/smb-share:domain=yourdomain.com,server=hostname,share=files,user=username" ~/files_on_hostname
or something similar.