/usr/bin/erl_call is in erlang-base 1:19.2.1+dfsg-2+deb9u2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/bin/../lib/erlang/lib/erl_interface-3.9.2/bin/erl_call
/usr/bin/../lib/erlang/lib/erl_interface-3.9.2/bin/erl_call